hello...my first post. i am looking at getting probably a plasma soon and have the usual concerns. i have heard mentioned elsewhere about "lamp life". what exactly is that and does it relate to plasmas? life expectancy is very important and have seen on this forum that plasmas last the same as crt's..is that right? also, regarding screen burn. does that exrtend to the irritating logos of sky one etc that are displayed constantly, even through ad breaks? will they ruin a plasma screen? thanks for any advice.